Sedimentary Rocks, Weathering, and Erosion

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How does a hoodoo form?

By differing rates of erosion

Rocks that form when minerals crystallize from water are called_____rocks.

Chemical

How is mechanical weathering different from chemical weathering?

Chemical weathering changes the chemical composition of materials, mechanical weathering does not

________rocks are made of broken and minerals

Clastic

____ are pieces of rocks and minerals in a sedimentary rock

Clasts

____ is the process that squeezes sediment together

Compaction

What might cause mechanical weathering?

Growing plants and expanding ice

Which landform is created by glaciers?

Maraine

What type of change does erosion cause?

Physical change

What impact does weathering have on soil formation?

Rocks are broken down into smaller pieces, and finally sediment

During erosion rocks become more ____ and develop smoother edges.

Rounded

What type of rocks are formed by weathering?

Sedimentary rocks

How might a weathered mountain appear different from an unweathered mountain?

The weathered mountain would appear more round and smooth.

Carbonic acid is a mixture of

Water and carbon dioxide

What is weathering?

Weathering is the breaking down of rock over a long period of time.

____ rocks are made from the remains of organisms

biochemical

____ is a process that binds sediment together

cementation

The process of _____ causes rocks on Earth's surface to change, crumbling mountains, and widening valleys.

erosion

When liquid water _____in rock, it expands and causes rocks to erode by cracking them.

freezes

When rain combines with____in rock, it forms rust, which is a form of chemical erosion

iron

Chert

is a biochemical rock

Coal

is a biochemical rock

Limestone

is a biochemical rock

Calcite

is a chemical rock

Rock salt

is a chemical rock

Conglomerate

is a clastic rock

Erosion moves weathered rock from one ____ to another.

place

Erosion is the slow wearing away of Earth's ____ over millions of years

surface

Moving water

wears away land and moves rocks and soil


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